Home / 399,776,213,513.22-599,643,200,447.20-131,129,806,629.20

Finding the Fourth Proportional to 399,776,213,513.22, 599,643,200,447.20 and 131,129,806,629.20

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Solution

The fourth proportional to 399,776,213,513.22, 599,643,200,447.20 and 131,129,806,629.20 is: 196,687,782,472.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,776,213,513.22 : 599,643,200,447.20 = 131,129,806,629.20 : x
  2. Step 2: Convert to fraction form
    399,776,213,513.22/599,643,200,447.20 = 131,129,806,629.20/x
  3. Step 3: Cross multiply
    399,776,213,513.22x = 599,643,200,447.20 × 131,129,806,629.20
  4. Step 4: Simplify right side
    399,776,213,513.22x = 78,631,096,921,155,935,666,176
  5. Step 5: Solve for x
    x = 78,631,096,921,155,935,666,176/399,776,213,513.22
  6. Step 6: Final answer
    x = 196,687,782,472.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.